Question

question 18
the phase of the bacterial growth curve that shows the maximum rate of cell division is the
a lag phase
b stationary phase
c prophase
d exponential phase
e death phase

Explanation:

• Lag phase: Bacteria adjust to the environment, no significant cell division.
• Stationary phase: Cell division rate equals death rate due to limited resources.
• Prophase: A stage in mitosis (not part of bacterial growth curve phases).
• Exponential phase: Optimal conditions lead to maximum cell - division rate (logarithmic growth).
• Death phase: Cell death rate exceeds division rate due to harsh conditions.

Answer:

D. exponential phase